Home / 1,128,989.76-1,558,010.88-619,696.32

Finding the Fourth Proportional to 1,128,989.76, 1,558,010.88 and 619,696.32

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Solution

The fourth proportional to 1,128,989.76, 1,558,010.88 and 619,696.32 is: 855,183.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,989.76 : 1,558,010.88 = 619,696.32 : x
  2. Step 2: Convert to fraction form
    1,128,989.76/1,558,010.88 = 619,696.32/x
  3. Step 3: Cross multiply
    1,128,989.76x = 1,558,010.88 × 619,696.32
  4. Step 4: Simplify right side
    1,128,989.76x = 965,493,608,855.96
  5. Step 5: Solve for x
    x = 965,493,608,855.96/1,128,989.76
  6. Step 6: Final answer
    x = 855,183.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.